PK(25/pk) – H-25940-25 – Filter, Versapor, 3 μm, 25 mm (H2594025)

Designed for rapid, qualitative filtration of particulate matter from aqueous samples using a 25 mm glass fiber filter or other medium with porosity ≥ 1.0 µm (micron). Used in Hach Method 10014 for Ultra Low Range Chlorine in Wastewater (EPA Accepted method).